The Greatest Show on NBA Earth had a date in Miami on Sunday. And no, we don’t mean the basketball team from Los Angeles.

P.T. Barnum couldn’t find a tent big enough to cover the Lakers and their following. But if audiences ever tire of Kobe Bryant breathing fire or Dwight Howard Sr. advising the coach to swallow a few swords, they might notice something else is happening.

LeBron James has shot over 50 percent from the field for the past three seasons and is on pace to make it a fourth straight season. (AP Photo)

LeBron James. Guy’s pretty good.

So are the Heat. It’s just that after two years of being the NBA’s most scrutinized team, they are happy to let the Lakers roast in the spotlight.

About the only suspense in Miami these days is whether James will miss a shot. He made 12 of 18 while scoring 32 points in Sunday’s 107-97 win.

It was James’ fifth straight game with at least 30 points and 60 percent shooting. That tied an NBA record held by Moses Malone and Adrian Dantley.

“Any time I can be linked with NBA history as far as stats, it’s very humbling,” James said afterwards.

If this keeps up, he’s going to be the runaway winner of the Most Humble Player. As prime as his career has been, James is entering a new realm of excellence. All the post-Cleveland trauma and drama is over, leaving only basketball to talk about.

“Don’t take it for granted,” Heat head coach Erik Spoelstra said. “He’s making greatness look easy.”

The problem is basketball greatness isn’t as much fun to discuss as the ongoing pie-throwing contest in Los Angeles. That’s why a sub-.500 team leads SportsCenter five nights a week.

We can’t get enough, though rapper Li’l Wayne apparently did Sunday. He shows up occasionally at Heat games but tweeted Sunday that he was thrown out for cheering for the Lakers. The Heat said Li’l Wayne left on his own at halftime. The Lakers can’t escape controversy even when they have nothing to do with it.

Their latest dysfunction had Dwight Howard’s father saying Kobe isn’t a doctor, therefore he shouldn’t be telling his son to play through a shoulder injury. The torn labrum is bad enough that Howard’s now wearing a “postural alignment shirt” to help keep his Mr. Universe torso from unraveling.

Dwight’s dad then suggested that Lakers head coach Mike D’Antoni should stop this nonsense. It must all be very amusing to the Heat, who were the NBA’s runaway hit reality show until winning the title last June.

“We understand what they’re going through,” James said. “But we don't understand teammate going against teammate or coaches going against teammates. We didn’t have any of that.”

If they had, Spoelstra would have been fired five games into a season. Then LeBron’s mother would have told Wade that her son should be the go-to superstar.

There’s no doubt he is now. Though when Wade explodes for 16 fourth-quarter points like he did Sunday, it reminds you how good the Heat can be when they’re serious. For now, though, it’s just a matter of staying healthy and awake until the playoffs.

Thank goodness there’s LeBron’s Ascension to bat around. He’s now made 55 of his last 77 shots (71.4 percent). He’d shot over 50 percent the past three seasons, but this year’s clip (56.2) is mind-boggling for a player at his position.

LeBron’s position is every position. He’s developed a post-up game. He’s making 42.1 percent of his 3-pointers. He doesn’t force anything. Basketball has never seen anything like this.

“Besides winning the lottery gene pool that he won,” D’Antoni said, “he takes it to a different level that I don’t know if anybody can go there, to be honest with you.”

Shooting-wise, very few have. Wilt Chamberlain made 72.7 percent of his shots in the 1972-73 season, but most came within three feet of the basket. The top 10 shooting seasons ever were by centers and players who operated in the low post.

Bryant’s best shooting percentage in a season is 46.9. Larry Bird’s best was 52.7. Michael Jordan’s was 53.9.

“I’m in a comfort place right now where I can just go out and play free,” James said.

Then there are the Lakers, whose discomfort was crystallized on one play Sunday. Steve Nash was trapped and Howard started yelling for the ball. Nash wanted him to move and neither got their way.

The ball got loose and Miami went Showtime. James finished it with a dunk while Nash and Howard were still yammering with each other about what went wrong.

“They have a couple of sensational players over there that made some big plays,” Bryant said.

The Lakers also have some sensational players. Or had some. Or will have some as soon as LA gets a shipment of magic postural alignment shirts.

Whatever happens, the Lakers won’t be back in Miami unless they make it to the NBA Finals. Sadly for all the Li’l Waynes out there, the circus has left town.